粤北诸广山岩体南部长排铀矿床7号断裂带找矿潜力分析  

Prospecting Potential Analysis on Fault Zone No.7 of Changpai Uranium Deposit in the South of Zhuguang Pluton,Northern Guangdong Province

作　　者：许幼 XU You(Research Institute No.290,CNNC,Shaoguan,Guangdong 512029,China)

机构地区：[1]核工业二九〇研究所,广东韶关512029

出　　处：《铀矿地质》2024年第4期718-728,共11页Uranium Geology

基　　金：中国核工业地质局铀矿地质勘查项目(编号:202338-3)资助。

摘　　要：长排铀矿床位于诸广山岩体南部的长江矿区,北临棉花坑铀矿床,区域上成矿条件优越。通过近年来的勘查工作验证,在其7号断裂带取得了较好的找矿成果,主矿体已控制资源量超千吨。为探寻7号断裂带深部是否仍具有找矿潜力,文章从断裂带性质、规模及蚀变特征等方面,与棉花坑主含矿带对比,发现两者矿化特征、控矿因素相似,且同样具有矿体往深部有变富、变大的趋势。通过综合分析7号断裂带的铀矿化特征、控矿因素、铀成矿规律及成矿模式,结合近年来在该带取得的地质、综合物化探成果以及矿体的侧伏规律等,认为7号断裂带走向、倾向,特别是0 m标高以下具有较好的找矿潜力。Changpai uranium deposit is located in fault zone No.7 of Changjiang mine area in the south of Zhuguangshan pluton,and close to the Mianghuakeng deposi which is famous for the great depth and uranium reservoir.Recent years exploration have discovered over thousand tones uranium reservoir in Changpai uranium deposit.The characteristics of the fault zone,such as nature,scale and alteration,are similar to those of the main ore-bearing zone in Mianhuakeng,but the geological condition the depth is till unclear.In this paper,a comprehensive geophysical and geochemical prospecting,3D modeling and lateral distribution of orebody was conducted and the result showed that the strike and dip of the orebody have good metallogenic potential,and the lateral distribution of orebody is simliar to that of the Mianhuakeng deposit,it was considered that the strike and dip extending area of fault zone No.7,especially level below 0 m elevation,have good prospecting potential.

关 键 词：长排铀矿床 7号断裂带 矿化特征 控矿因素 找矿潜力 

分 类 号：P619.14[天文地球—矿床学]